Diagnostic Trouble Code (DTC) Information

Diagnostic Trouble Code (DTC) Information







Special tools: 998 8686

Condition
Diagnostic trouble code (DTC) 2-1-2 is stored if the control module detects abnormal signals in the circuit for the vacuum pump or regulator.

Possible source
- Open-circuit in the wiring between the control module and the vacuum pump / regulator.
- Short-circuit to ground or voltage in the cables between the control module and the vacuum pump / regulator.
- Defective vacuum pump or regulator.
- Contact resistance in the terminals.

Condition
- The cruise control does not engage.
- The cruise control disengages while the car is being driven.